mail2-nixos-config/configuration.nix
2024-08-21 01:16:00 +02:00

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# Edit this configuration file to define what should be installed on
# your system. Help is available in the configuration.nix(5) man page
# and in the NixOS manual (accessible by running nixos-help).
{ config, pkgs, ... }:
{
imports =
[
./hardware-configuration.nix
./acme.nix
./checkmk-agent.nix
./sshusers.nix
./mailserver.nix
./borgbackup.nix
./nginx.nix
./hopglass-frontend.nix
./gitolite.nix
];
# Configuration options for the mailserver
# MOVED to mailserver.nix
# Use the GRUB 2 boot loader.
boot.loader.grub.enable = true;
boot.loader.grub.version = 2;
# boot.loader.grub.efiSupport = true;
# boot.loader.grub.efiInstallAsRemovable = true;
# boot.loader.efi.efiSysMountPoint = "/boot/efi";
# Define on which hard drive you want to install Grub.
boot.loader.grub.device = "/dev/vda"; # or "nodev" for efi only
networking = {
hostName = "mail2";
domain = "hamburg.freifunk.net";
dhcpcd.enable = false;
interfaces.ens3 = {
ipv4.addresses = [ { address = "193.96.224.229"; prefixLength = 29; } ];
ipv4.routes = [
{ address = "100.64.112.248"; prefixLength = 29; }
{ address = "10.112.0.0"; prefixLength = 16; via = "100.64.112.251"; }
];
ipv6.addresses = [ { address = "2a03:2267:ffff:c00::e"; prefixLength = 64; } ];
};
defaultGateway = { address = "193.96.224.225"; };
defaultGateway6 = { address = "2a03:2267:ffff:c00::1"; };
nameservers = [
"46.182.19.48" "2a02:2970:1002::18" # Digitalcourage DNS Server
"194.150.168.168" # AS250, https://www.ccc.de/de/censorship/dns-howto
];
firewall.rejectPackets = true;
firewall.logRefusedConnections = false;
};
# Automatic update each day at 04:40. Will not restart the system, so a reboot every now and then is a good idea.
system.autoUpgrade.enable = true;
system.autoUpgrade.allowReboot = true;
nix = {
autoOptimiseStore = true;
gc.automatic = true;
gc.options = "--delete-older-than 14d";
};
# Select internationalisation properties.
i18n = {
# consoleFont = "Lat2-Terminus16";
# consoleKeyMap = "us";
defaultLocale = "de_DE.UTF-8";
};
# Set your time zone.
time.timeZone = "Europe/Berlin";
# List packages installed in system profile. To search, run:
# $ nix search wget
environment.systemPackages = with pkgs; [
git htop lsof mosh nano sqlite tcpdump traceroute vim wget
];
# Some programs need SUID wrappers, can be configured further or are
# started in user sessions.
programs.mtr.enable = true;
# programs.gnupg.agent = { enable = true; enableSSHSupport = true; };
programs.screen.enable = true;
programs.screen.screenrc = ''
hardstatus alwayslastline
hardstatus string '%{= kG}[ %{G}%H %{g}][%= %{= kw}%?%-Lw%?%{r}(%{W}%n*%f%t%?(%u)%?%{r})%{w}%?%+Lw%?%?%= %{g}][%{B} %m-%d %{W}%c:%s %{g}]'
defscrollback 1000
'';
# List services that you want to enable:
# Enable the OpenSSH daemon.
services.openssh = {
enable = true;
# Only allow login through pubkey
passwordAuthentication = false;
challengeResponseAuthentication = false;
extraConfig = "PubkeyAcceptedAlgorithms +ssh-rsa";
};
# Support mosh connections
programs.mosh.enable = true;
# Open ports in the firewall.
# networking.firewall.allowedTCPPorts = [ ... ];
# networking.firewall.allowedUDPPorts = [ ... ];
# Or disable the firewall altogether.
# networking.firewall.enable = false;
# User configuration for root.
# Other users are defined in sshusers.nix
users.extraUsers.root = {
hashedPassword = "!";
};
users.motd = with config; ''
Welcome to ${networking.hostName}.${networking.domain}
- This server is NixOS
- All changes must be done through the git repository at
/etc/nixos or https://github.com/freifunkhamburg/mail2-nixos-config/
- Other changes will be lost
OS: NixOS ${system.nixos.release} (${system.nixos.codeName})
Version: ${system.nixos.version}
Kernel: ${boot.kernelPackages.kernel.version}
'';
# This value determines the NixOS release with which your system is to be
# compatible, in order to avoid breaking some software such as database
# servers. You should change this only after NixOS release notes say you
# should.
system.stateVersion = "19.03"; # Did you read the comment?
}